164-81-4537

1 page

This was read as a date when the page was transcribed, but it is not one — usually an FBI file or serial number.

LetterFBI Seattle acknowledging citizen tip (Sub 623)22 March 1973 · Seattle · Part 116 · 1 page

p. 52FBI Seattle field office letterhead with date. Handwritten annotations near the letterhead, partially illegible. Includes a sub-file reference 'Sub 623' and notation 'DIC Memo'. Form letter from FB…